A nurse in an emergency department is reviewing a client's ECG reading.
Which of the following findings should the nurse identify as an indication that the client has first-degree heart block?
Prolonged PR intervals.
Nondiscernible P waves.
More P waves than QRS complexes.
No correlation between P and QRS waves.
The Correct Answer is A
First-degree heart block is a type of atrioventricular (AV) block that involves the consistent prolongation of the PR interval (defined as >0.20 seconds) due to delayed conduction via the atrioventricular node.
This is seen on an ECG as a PR interval greater than 200 ms in length.
Choice B: Nondiscernible P waves are not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice C: More P waves than QRS complexes is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice D: No correlation between P and QRS waves is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
People with diabetes should wear cotton rather than nylon socks.
Cotton socks are more breathable and can help keep feet dry, reducing the risk of infection.
Choice B is not the answer because people with diabetes should never use a heating pad on their feet.
Choice C is not the answer because people with diabetes should avoid walking barefoot, even around the house.
Choice D is not the answer because people with diabetes should wash their feet every day in warm water with mild soap, not hot water and antibacterial soap.
Correct Answer is B
Explanation
This statement indicates that the client understands that genital herpes lesions can take time to heal and that they may not resolve immediately.
Choice A is incorrect because antibiotic ointment is not used to treat genital herpes lesions.
Antiviral medication is used to manage symptoms and prevent outbreaks.
Choice C is incorrect because natural skin condoms are not effective in preventing the spread of genital herpes.
Latex condoms should be used during sexual intercourse to reduce the risk of transmission.
Choice D is incorrect because the duration of antiviral medication treatment for genital herpes varies and may be longer than 3 weeks.
It’s important for the client to follow their healthcare provider’s instructions for taking medication.
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